Chapter 17, Problem 71E

(a)

Interpretation Introduction

Interpretation:

The freezing point depression and osmotic pressure of an aqueous solution containing 1.0 g/L of a protein should be calculated.

Concept Introduction :

The equation for freezing point depression

  

  

  

  $\begin{array}{l}\pi \text{ - Osmotic pressure in atmosphere}\\ \text{M - Molarity of the solute}\\ \text{R - universal gas constant}\\ \text{T - temperature}\end{array}$

(b)

Interpretation Introduction

Interpretation:

Which would be better between freezing point depression or osmotic pressure to use to determine the molar masses of large molecules should be explained.

Concept Introduction :

Osmotic pressure is the minimum pressure required to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane.